Electrometer
An electrometer is an electrical instrument for measuring electric charge or electrical potential difference. There are many different types, ranging from historical hand-made instruments to high-precision electronic devices. Modern electrometers based on vacuum tube or solid state technology can be used to measure extremely small currents down to 1 femtoampere.
External links
- {{US patent|1716700}} -- Electroscope -- Richard D. Kleeman -- 1929
- Build this FET electrometer - A very simple circuit - 2 components
- Simple FET electrometer - A simple bridged circuit
- An op-amp electrometer
- http://www.orau.org/ptp/collection/electrometers/electrometers.htm Early electrometers
- Charging an Electroscope by Induction Using a Negatively-Charged Balloon from Multimedia Physics Studios
~ Table of Content ~
| ► | Introduction |
| ► | Simple charge indicating device |
| ► | Capacitance electroscopes |
| ► | Modern electrometers |
| ► | Experiments with an electroscope |
| ► | See also |
| ► | External links |
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